JMA Himawari-9 Infrared Window (10.4 µm) images of Tropical Cyclone Judy in the South Pacific Ocean on 27 February 2023 (above) displayed some unusually cold cloud-top infrared brightness temperatures — with isolated vales of -100ºC and colder (red pixels embedded within interior darker black regions).The Central Cold Cover feature was... Read More

1-minute GOES-16 (GOES-East) Mesoscale Domain Sector “Red” Visible (0.64 µm) images (above) included time-matched (+/- 3 minutes) plots of SPC Storm Reports — which showed severe thunderstorms that moved east-northeastward across parts of Texas, Oklahoma and Kansas on 26 February 2023. The hazy signature of blowing dust was apparent along the New Mexico / Texas border region, along and ahead... Read More

1-minute Mesoscale Domain Sector GOES-18 (GOES-West) “Red” Visible (0.64 µm) and “Clean” Infrared Window (10.3 µm) images (above), with and without an overlay of GLM Flash Extent Density, showed convection moving onshore in Southern California during the late morning hours on 24 February 2023 — which prompted NWS Los Angeles to issue a Tornado Warning at 1807... Read More

GOES-16 (GOES-East) “Red” Visible (0.64 µm) images (above) showed strong southwesterly winds ahead of an approaching cold front, causing areas of blowing dust across parts of New Mexico, Texas and Oklahoma on 22 February 2023. Strongest wind gusts were in the 60-70 mph range, and blowing dust was reducing the surface visibility to... Read More